Self-lubricating die-stock.



0. G. LARSON.

SELF LUBRICAHNG DIE STOCK.

APPLICATION FILED IAN. 4| 19H- m w m a REA Patented Apr. 27, 1915.

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ITED STATES PATENT OFFIG.

OLE G. LARSON, OF DULUTH, MINNESOTA, ASSIGNOR OF ONE-HALF T0 DAVID 3. BLACK,

OF DULUTH, MINNESOTA.

SELF-LUBRICATING DIE-STOCK.

Specification of Letters Patent.

Patented Apr. 27, 1915.

To all whom, it mm concern:

Be it known tiat I, OLE G. LARSON a citizen of the United States, residing at uluth, in the county of St. Louis and State of Minnesota, have invented certain new and useful Improvements in Self-Lubricating Die-Stocks, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to die stocks and more particularly to a die stock provided with means whereby a lubricant may be applied to the dies.

The primary object of my invention is the provision of a die stock so formed that one handle of the die stockconstitutes a reservoir for lubricant whereby lubricant may be {1)Pll0d to the cutting dies.

A further object of the invention is the provision of a lubricant containing a reservoir formed in the handle of the die stock and the provision of means disposed in said reservoir whereby the lubricant may be forced out from the reservoir and on to the cutting edges of the dies by a pressure of the operators finger.

Still another object of the invention is to so construct the reservoir that it may be readily cleaned, when necessary and that the handle which forms the reservoir may be removed from the body of the stock itself.

Other objects will appear in the course of the description.

Figure l is a plan view of a die stock constructed in accordance with my invention; and Fig. 2 is a fragmentary plan view of a portion of the bod of the stock and the handle, the handle being in section to show the interior of the reservoir.

Referring to these figures, 2 designates a die stock of any ordinary or usual construction, havin sockets pro]ecting therefrom at diametrical y o posite points, as shown at 5, each of which is interiorly screw-threaded. One of these sockets receives in it the usual handle 4 and the other the handle 5. This handle 5, for a portion of its length, at its outer end has the same diameter as the handle 4 and is hollow. The inner extremity of the handle 5 is exteriorly screwthreaded, as at 6 for insertion in the socket 8 and between the outer end of the handle and this inner end 6 the handle is enlarged to form a reservoir Preferablythis reservoir 7 and, therefore, the handle is formed of two sections 8 and 9, these sections having screw-threaded engagement with each other as atlO. This screw-threadin of the sections rovides a shoulder 11 between which an the end of the section 9 there is confined a diaphragm 12 of thin metal or other suitable material. Attached to the diaphragm l2 and extending out through the outer end of the handle is an actuating rod 13, the outer end of which passes through a plug 14 and has attached to its extremity a button 15. In order to provide for the filling of the reservoir 7, I form the )ortion 8 with a filling opening 16 closed y a screw-threaded closure or plug 17.

The operation of my invention will be obvious from what has gone before. The die and stock is to be used in the ordinary manner and, when it is desired to oil the stock, the button 15 is pressed inward, forcing inward the dia hragm 12 and causing the oil to be ex elle through the contracted nozzle 18 into t e contracted bore 19 formed in the adjacent )ortion 3. The button 15 should be resse inward when the handle is in a vertlcal position.

It will be seen that with my device, the oiling of the die stock is entirely within the control of the operator and that the reservoir 7 may be readily filled. It will also be obvious that the handle 5 may be readily detached from the body of the stock, as may the handle 4. Again, it will be seen that by detaching the two sections 8 and 9 from each other, the diaphragm 12 which is held to the rod 13 by nuts 20, may be readily detached and that full access is had to the interior of the reservoir 7, so as to thoroughly clean it when necessary or to put in a new dia hragm, when required.

(y invention is sim le, can be readily applie to stocks alrea y in use by simply providing a new handle for this stock and it is entirely effective in practice.

Havin thus described this invention, what I c aim as new and desire to secure by Letters Patent, is

1. A die stock having a hollow handle formed to provide a lubricant reservoir, a 9

diaphragm disposed within the reservoir, an means extendinlg through the handle for actuating said iaphragm to eject oil from the reservoir.

2. A die stock having a hollow handle,

one portion of the handle being enlarged to form a lubricant chamber, a diaphragm disposed within the chamber, a rod connected with the diaphragm and extending out through the handle, and a button mounted upon the rod whereb the diaphragm may be actuated to eject t e oil from the reser-. voir.

3. A die stock including a hollow handle enlarged at one portion to form a lubricant reservoir, said handle being'made in two sections, the joint between the sections extending through the reservoir, a diaphragm disposed between said sections and within the reservoir, a rod attached to the diaphragm and extendin out throu h the outer end of the hollow iandle, and a utton attached to said rod.

4. A die stock including a body having outwardly extending oppositely disposed handle-socketsaa removable handle in one of said sockets,jand a removable handle for en- 'gageme'nt in the other socket, the last named iandle being, hollow and having an enlar ed ortion intermediate its length, a metallic iaphragm removably dis osed within said enlar ed portion, a re extending out through t e end of the handle and provided with means whereby the diaphragm may be actuated, and means whereby the reservoir may be filled.

In testimony whereof I hereunto :iflix my signature in the presence of two witnesses.

OLE G. LARSON.

\Vitnesses:

HENRY C. Hanson, J. FULLER Srarroao.

Copies 02 thin patent may be obtained for five cents each, by addressing the "Commissioner of Patenta Washington, D. 0." 

